pHat DAC + RBP w zero no sound

Hi everyone!
First of all thank you for your help!

Recently I bought a phat dac and a GPIO solderless (at thepihut) and I attached to my raspberry pi w Zero.

I follow the instruction like this:
https://learn.pimoroni.com/tutorial/phat/raspberry-pi-phat-dac-install

I reboot, I try to make some sound test, but nothing.

The phat dac is attached to an amplificator with speakers. obviously the aplificator works fine (I play music directly from the iphone with the 3,5 jack)

I put some screenshots of the installation and info:

IMG-3924

Some comands:

aplay -L

null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=sndrpihifiberry
snd_rpi_hifiberry_dac,
Default Audio Device
sysdefault:CARD=sndrpihifiberry
snd_rpi_hifiberry_dac,
Default Audio Device
dmix:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct sample mixing device
dsnoop:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct sample snooping device
hw:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct hardware device without any conversions
plughw:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Hardware device with all software conversions

If you need more info, I can post it.

Thank you in advance!

alsamixer:

alsamixer

Some help in this problem? thank you!